i feel tired after smoking a cigarette Quitting Smoking: Why Am So Tired?? why do i feel so

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Cigarette smoke contains a mixture of chemicals, absorbed through the lungs

In the general population, the prevalence of COPD among adults aged over 30 years is approximately 10.3%, whereas individuals in high-risk groups, including smokers and those with occupational or environmental exposure, face a markedly increased risk (6)

Long, J

Labelling accuracy in low nicotine e-cigarette liquids from a sampling of US manufacturers